Leaf-turning apparatus



(No Model.) 2Sheets-ShQt 1.

O. R. HILL.

' LEAF TURNING APPARATUS. No. 590,761. Patented Sept. 28,1897.

(NoModeL) 2 Sheets-Sheet 2. O. R. HILL.

LEAF TURNING APPARATUS. No. 590,761. Patented Sept. 28,1897.

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A PATENT rricn.

CHARLES R. HILL, OF IVALTHAM, MASSACHUSETTS.

LEAF-TURNING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 590,761, datedSeptember 28, 1897.

Application filed May 19, 1897. Serial No. 637,162. (No model.)

To all whom it may concern:-

Be it known that I, CHARLES R. HILL, of Waltham, county of Middlesex,State of Massachusetts, have invented an Improvement in Leaf-TurningApparatus, of which the fol lowing description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention has for its object to provide a novel leaf-turningapparatus adapted to engage and turn each leaf as needed.

In myinvention I attach to each leaf to be turned an armature, andcooperating with this I provide an arm or carrier having a magnet toengage the armature attached to the leaf and take said leaf with it,turning it over, and the carrier having turned the leaf fully over areleasing device is moved to detach the armature fixed to the leaf fromthe magnet.

The arm or carrier referred to has combined with it suitable actuatingmeans to move it to and fro, said means being preferably under thecontrol of a foot or other treadle or starter.

Figure 1 represents a piece of sheet-music supported 011 a music holderor stand, my improved mechamism being mounted on the stand. Fig. 1 showsthe clip a Fig. 2'isa top or plan view of Fig. 1. Fig. 3 is a rear sideview. Fig. at is a section in the liners, Fig. 3. Fig. 5 is an enlargeddetail of the Fig. 5 shows the faces of the magnet, and Figs. 6 and 7show two forms of armatures or contacts to be fixed to the leaf or sheetto be turned.

To prepare the sheet-music A so that it may be made a cooperative partof my leaf or sheet turning apparatus, I add to the front side of thesaid leaf an armature or contact a, preferably a piece of metal, whichis fitted over the top edge of the leaf and retained there frietionally;or it may, if desired, be otherwise attached, as by glue; and so also,if desired, the armature may be out to present fingers a (see Fig. 7) tooverlap one side of the leaf.

The sheet-music may in use be supported upon a shelf, as A, of asuitable stand or rack A suitably supported wherever the same is to beused, and this stand or rack is made instrumental in holding themechanism employed to turn the leaves one after the other.

To the rear side of this stand (see Figs. 2 and 3) I have attached asuitable frame-plate B, it resting upon hollow lugs B, through which andinto the stand are inserted suitable screws B This said frame-plate atits rear end hasloosely mounted upon it through set-screws b the foot ofa stand I), said stand having at its top a right-angled portion whichreceives a stud-screw 19 which serves as the fulcrum for themagnet-carrier 12 said magnet-carrier being represented as a leverhaving at one end a semicircular series of teeth b while at or near itsother end the said carrier is provided with a hole for the reception ofthe reduced upper end 0 of a rod or pin 0, the upper end of said rodhaving a tapped hole to receive a screw-threaded part c of a stud-screw0 inserted through the hole of said carrier and screwed into thethreaded hole of the rod or pin 0. This rod or pin has mounted upon 'itsnugly, so as to slide thereon, the hollow shank c of a magnet 0 and thesaid pin is split for a portion of its length to hold the magnetfrictionally. This magnet is bored out centrally and receives within ita sliding spring-pressed releasing device d. This releasing device iscomposed of a rod (see Fig. 5) provided with a head (1 and fitted toslide in a suitable bearing 61 of the magnet, a suitable spring (1surrounding the shank of the releasing device and normally acting tokeep said releasing device with its head in the recess of the magnet andawayfroln its face.

lVhen the carrier occupies the position shown inFigs. 1 and 2, themagnet contacts with the armature a, and thereafter as the carrier isswung around from the right toward the left the magnet in engagementwith the armature carries the leaf with it, putting the leaf from theright to the left side. As the carrier arrives in its farthest positionto the left the protruding end of the releasing device (represented inFig. 5) strikes the stand, and the releasing device is moved forwardlywith the magnet, the head of the releasing device striking the arinatureor the sheet opposite the armature, thereby detaching the armature fromthe magnet by pressure, and in order that the carrier may then movequickly back into its operative position to engage the next leaf to beturned the mag net must have a vertical movement in order that it may beput into a plane above the top of the leaf just turned over by it.

The releasing device has a projection (Z extended at right angles fromit which travels in a slot (Z of the magnet as the releasing device isrcciproeatcd in the magnet.

This invention is not limited to the particular shape shown for themagnet, nor to the particular shape of the armature, nor to anyparticular way of attaching the armature to the leaf.

The stand h is slotted where it is entered by the stud-screws 1), sothat the stand may be slid vertically with the carrier in order that themagnet may rise, as described, above the top of the leaf. The stand I)has fixed upon or with relation to it a stud U, to which is attached oneend of a suitable spring Zr, the opposite end of the spring beingattached to a pin 1), fixed to the frame-plate. This pin Z)" extendsthrough a slot in the frame-plate and enters an annular groove in acollar 0, fixed on a shaft c, having attached to it at or near its lowerend a suitable collar 0 on which rests a spring a", the upper end ofsaid spring acting against a bracket c", connected to and extendedhachwardly from the frame-plate, the shaft 0 above said stand. havingattached to it a second collar 0', which bears upon the said standthrough the action of the spring and limits the downward position of theshaft.

The shaft 0 has fixed upon it a third collar f, under one end of: whichnormally stands an arm f 011 an elbow-lever mounted upon a stud f theopposite end of said elbow-lever standing in the path of movement of atoothed slide f, the said slide being secured to a rod f, mounted inbearingsf, fixed to the frameplate l3.

The rod f has attached to it two stop-collars g g, the collar 9 limitingthe turningov .2 stroke of the carrier Z)" and the magnet, as the latterapproaches an armature to engage it, by contacting with the inner end ofthe bearing 1"", while the collar g, as the rod 1" is moved to the left,viewing Fig. 3, to cause the carrier, its magnet having engaged anarmature of a leaf, to turn it, meets the upper end of said lever,causing it, acting 011 the collar f, to lift the shaft 0, causing it toslide in its bearings e and a, and at the same time the stand Z) iselevated through the action of: the grooved collar 0 and pin 1), so thatwhile the shaft 6 is rotated, as will be described, during the operationof turning the leaf over it will be lifted to remove the magnet from itsengagement with the armature after the leaf shall have been turned over.

The shaft 0 has fixed upon it a small pinion 71, which engages with theteeth of the toothed slide 1'', and as the slide is moved its teethacting 011 the pinion rotate the shaft, and the engagement of the pinionand the teeth of the slide is not broken during this operation becausethe teeth of the slide are long teeth.

The shaft 0' has fixed on or with relation to it, just above the toothedslide, a plate 7t, and resting 011 this plate is a friction-washer h,and this friction-washer has resting upon it the foot of a sleeve 7r,the upper end of the sleeve having fast upon it a toothed gear 71 screws7r being used to effect this connection, and the said shaft within saidsleeve is surrounded by a spiral spring 7t, which rests at its lower endupon the said washer, the upper end of the spring resting on anothercollar 75, fast 011 the top of the shaft.

The spring, the washer, and the sleeve and collars referred toconstitute a frictional connection between the shafte and the toothedgear 7t, and this gear as the shaft rotated engages the teeth b of thecarrier and moves the same back and forth. This frictional connection ofthe toothed gear 7/1 with the shaft c enables the magnet when it comesto a bean ing upon the first leaf to be turned to yield somewhat, so asnot to injure or strain the carrier, and owing to this frictionaladjustment of the gear to the shaft the magnet is enabled to adaptitself to the varying thicknesses of the pile of leaves to be turned.

The rod f is herein shown as actuated by or through an elbowdever 'Ht,pivoted at m, the opposite end of said elbow-lever having attached to ita link 711?, in turn connected with an arm in of a rock-shaft m. Thisroeleshaft, as herein shown, has connected with it at its end at thefront of the stand A a lever 111,, so that the end of said lever may bestruck when desired to move the carrier to turn a leaf, or this levermayhave connected with it in any suitable manner a red attached to atreadle, so that by the foot the movement of the carrier may be effectedat the desired times.

The carrier and its actuating devices constitute important features ofmy invention, even though the magnet should be omitted and other usualmeans for engaging and dis engaging a leaf is substituted for it.

The shelf of the stand may, if; desired, be provided with a pin orspring n to act at the folded part of the piece of shcet-mnsie andlocate the same correctly, the armatn res when the spring or pin is atthe :fold of the music occupying the proper position to be engaged bythe magnet.

The shaft c is rotated by the toothed slide in the direction to causethe carrier, its mag" not having engaged an armature attached to a leaf,to turn said leaf over, and as soon as the rear end of the magnet meetsan. obstrud tionas, for instance, the stand, when the leaf is fullyturned ovcr--the carrier is there by temporarily stopped; but the shaftunder the action of the toothed slide continues to rotate, while theslide in the last part of its stroke acts through the lever f to liftthe shaft, and while the said carrier is so temporarily arrested theshaft is turned, i slipping in the gear I), said gear being preventedfrom rotation by reason. of its engagement with the teeth of thecarrier. After the shaft 6 has been lifted sufficiently to put themagnet above the leaf the toothed slide may be moved in the oppositedirection at any desired time to enable the magnet to engage anotherleaf.

In practice I sometimes find in sheet-music a single page, and toprovide for turning this page I mount on the pin or spring at abifurcated clip 11 (see Figs. 1 and 1%) and between the jaws of thisclip I push the edge of the said single page, so that While the magnetin engagement with the armature at the top of the page near one corneris turning the page the clip holding the lower end of the edge of thepage Will turn about the pin or spring.

The stud f on Which the lever f turns may have applied to it outsidesaid lever a suitable friction Washer or device f so that the said leverWill not move of itself.

Having described my invention, What I claim as new, and desire to secureby Letters Patent, is

I. In a leaf-turning apparatus, a support for the leaves to be turned, a.carrier having a magnet adapted to engage an armature applied to eachleaf to be turned, means to move said carrier to engage said armatureand cause it to turn over the leaf, and a sliding pin to effect therelease of the armature attached to said leaf from the said magnet,substantially as described.

2. In an apparatus such as described, a stand to hold sheet-music andthe like the leaves of which are to be turned, a vibrating toothedcarrier provided with means to engage a leaf to be turned, a toothedWheel in en gagement with the teeth of the carrier, a sliding shaft onwhich the said Wheel is mounted, a pinion fixed on said shaft, and asliding rack to engage said pinion to rotate said shaft at the desiredtime in one and then in an opposite direction, substantially asdescribed.

3. In an apparatus such as described, a stand to hold sheet-music andthe like, the

leaves of which are to be turned, a vibrating toothed carrier providedWith means to engage a leaf to be turned, a toothed Wheel in engagementWith the teeth of the carrier, a shaft on Which the said Wheel isfrictionally mounted, means to rotate said shaft at the desired time inone and then in an opposite direction,.and means to raise and lower saidshaft and its attached carrier for engaging the leaf to be turned,substantially as described.

4:. The shaft 6 provided with a frictionallyheld toothed gear, andhaving an attached pinion, and a toothed magnet-carrier, combined with atoothed sliding block and means to reciprocate said block, substantiallyas described.

5. The shaft 6 provided with a toothed gear, and having an attachedpinion and a collar f, means to normally depress said shaft, a toothedblock engaging said pinion, a rod carrying said block, a lever havingone of its ends located to cooperate With said collar, the other end ofsaid lever engaging the said rod, and means to slide said rod, it in itsmovements rotating said shaft and also sliding it vertically during aportion of its said rotation, substantially as described.

6. In an apparatus of the class described, a movable carrier, providedwith a split pin or rod,cornbined with a magnet having a sleeve fittedto said rod, substantially as described.

7. In an apparatus of the class described, a movable carrier, and aconnected hollow magnet, combined with a sliding springpressed pin, tooperate, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES R. HILL.

\Vitnesses:

GEO. W. GREGORY, MARGARET A. DUNN.

